Question

Find the equation of the line that passes through the pair of points. (-4,3), (-4,-2)

Answer 1

x = -4

Explanation:

Using the slope formula,

we would get (3+2)/(0),

which isn't possible. Then, we realize why. A line will not have an equation when going straight up and down. And that's what this line is doing. Both of the x values are the same, so it's only going up. So therefore, the equation is x = a constant.

This constant is -4

Hope this helps!